I recently got an email asking if I was still interested in a position only a couple weeks after the application deadline. Ten days or so later, I found out on this site that they had requested campus interviews already.

Why would they ask if I was still interested and then not even interview me? Kind of messed up, right?

eh, don't take it personally. Its late in the game and you probably made a long-short list. So it probably was a way that they could save time not talking about good candidates who they couldnt bring in

I agree that you shouldn't take it personally, but it is surely upsetting. I really wish there were more transparency to some of this stuff because for me the worst thing is waiting. Especially after your campus interview is done and you know they've finished interviewing the last candidate, the wait is awful. One week goes by you start feeling nervous, 2 weeks and you're getting more sure you arn't going to get it, etc. Till finally you get that e-mail that kills that last bit of hope you had.

They really should e-mail candidates who completed interviews once they've made an offer, just to let them know where they stand. I get that they think it's better to not do this in case the other person declines, but it is really quite unpleasant being in limbo.

I know it isn't personal. It is still poor etiquette though. They should only have asked the people they would interview for sure if they are still interested (assuming they were still interested) then messaged the "backups" (like I was) only if the people they wanted declined.

This is the equivalent of a woman approaching you and asking if you are interested in going on a date with her, then she just flees the scene and you never hear from her again (presumably while making a "talk to the hand" motion!)

Yes, this happened to me when I was on the market a few years ago. It was one of my top-choice school's as well. The only "saving grace" is that I followed up with them and the SC member that replied was very apologetic and nice. But I agree, contact the people you want to actually phone interview to see if they're interested. If a couple say no, then contact another couple of people! It's only an email, it's not like it wastes much time to send some a day or two later if necessary.